diff --git a/requirements/dev.txt b/requirements/dev.txt
index c22b06a..ab8163c 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -10,7 +10,7 @@ isort==4.3.4
 multidict==4.1.0
 pip==10.0.0
 pyflakes==1.6.0
-pytest-cov==2.5.1
+pytest-cov==2.12.1
 pytest-mock==1.9.0
 pytest==3.5.0
 towncrier==17.8.0